Cow-milker.



No; 887,212. PATENTED MAY 12, 1908. Q

0. A. MOLDENHAUER.

00W MILKBR.

APPLIUATIOfi FILED 3111.28, 1907. I

2 SHEETS-SHEET 1.

W1 T/ve'ss 5s 5 6 fr? M oR/vEYs.

No. #387,212. PATENTED MAY 12, 1908. 0. A. MOLDENHAUER.

00W MILKBR.

APPLICATION FILED JAN. 28, 1907.

2 SHEETS-SHEET 2..

IN vE/v 1'0 R afwy w ATTORNEYS.

Specification of Letters Patent.

Patented May 12, 1908.

Application and, January as, 1907., Serial No. 354,425.

To all it may concern:

Be it known that 1, Or'ro A... MOLDEN- nxunm-a citizen of .the United States, residtions,

"through the mg' at Watertown, county of Jefferson, and

tate of Wisconsin, haveinvented new and useful jIm' rovements Cow-Milkers, of which the ollowing is a specification. My inventionre ates to improvements milking machines ofthat class which operate bysuction. The object of this invention is toprovide means for alternately; withdrawing air from I not cover the lower portion of the cup.

and admitting it to a teat inclosing suction cup, in amanner to not only relieve the teat from a continuous suction strain but to moisten it and draw the'milk therefrom in a natural" manner. Also to rovide means, controlled through the app ication of the suction, for lightly com ressing the upper portion of' the. teat, reggrdbeing had .for thorough'sanitation as well forlightness and simplicity.

A'further'object is to-provide mean's'for maintaining a supply of milk in the suction cups incase the suction is continued after the supply in the udder has been exhausted, whereby the direct strain and injurious. effect of a dry'suction is avoided. Also to provide a mixing or settling chamber wherein the milk is aerated and permitted to condense.

In the-following description, reference is had'to the accompanying drawings in which,

Figure 1 is a general view of my invention showing the same connected with a suitable receiver. Fig. 2 is a top viewot a set of suction cups.v Fig. 3 .is a detail view partly in section, of one of the cups and its connec- With the mixing chamber included, a modified forin of cup bein'g illustrated. Fig. 4 is a detail sectional view of one of the cupsof the style shown in Fig. 1. Fig. 5 is a sec tional view of the three way valve.

- Like parts are identified by the same reference characters throughout the several views. The teat cups are formed in sections 1 and Qand are provided near their u per ends with a 'fiex'ible rubber lining memiier 3. In the construction shown in Fig. 4, this consists of athin piece of rubber tubing extending upper section 2 of the cup, to the upper end of which it is rigidly secured. The lower end of the lining is folded over the curing lining 3' pus lower end of. the section 2 andbound tween it and the wall of the lower section or member 1, into which the upper section (with the lining folded over its lower edge) is ad apt ed to fit. I 4 p In Fig. 3, the sections 1 a and 2" are screwed together. 4 The lining 3 is folded "over the ends of the upper section and secured thereto by wire 4: Any. other suitable means for se the lining in position may be em- 'ployed.

It is therefore adapted to bear only' agalnst the upper portion of the teat, leaving the lower portion without constriction. When the suction is ap lied, the air ressure back of the res it inwar ly and "ap desired pressure to the upper'portion of the teat to force the milk downwardly. The lining isof less diameter than the cup section so drawn outwardly or that, when the ends are of the section 2, it is expanded'over the ends not only distended, but

As hereinafter ex lained, air is a ternately withdrawn and aclinitted to the cupand the. permanently confined air be tween the lining and the wall of section 2, causes the lining to pulsate in contact with the upper portion of the teat without applymg a been found very effective in. withdrawing the milk. I

' The lower ends of the suction cups are connected with a trap chamber t by elbowed tubular connections 7, and a tube 8 leads" downwardly into the trap chamber to an inlet at 9 and downwardly on the exterior through a flexible tube 10, to a chamber 11, which serves as a collecting, settling and plies the i It vSwill be observed that the lining 3 does heavy pressure thereto, and this has aerating chamber, and from which a flexible a main 12 extends and connects with a receiver 13.. It will be observed that an in et 9 is located above the level of the bottom of the correspondin cup. The pipe 8 will therefore draw mi k directly from the cup when the level of the cup to prevent the direct application of the suction, and to; keep the teat moist until the milking operation ceases.-

the milk therein is above the inlet, but otherwise will leave enough milk in pockets alaody of air between its central portion and the wall of s ction 2.

. into the chamber'1-1, from which the mi k passes into the All'the tubes Stand of a set, dischar e 7 ma n 1L.- Nea the receiver, this is provided with a three way valve 16 having'ports 17'ai1d 18, which normally con-.

nect the open air duct 19 with the main, but

' which also has a port 20, adapted, with the port. 17, to connect the main with' the re-" ceiver.

A valve actuating lever 21 is held in normal position by against the tensionof the spring to open the ports 18 and 20. 2 4 are branch mains to (not shown) may be applied to secure the necessary suction.

position, and a vacuum being maintained in by the'exhaustgpu mp, the lever vv 1' is oscillated to 'altermite ly'col nect the 7 main with the receiver, 51101101145 of course 25 the milk. When connected with theexterior, air enters the main and lp'assing-to'th'e chamapplied to. the cups, and the lining members 3 push inwardly and cooperate inesspelling ber 11 aeratesthe milk t ierein and also facilitates. condensation Tlie.'i ri'rlk\reaches this ,lchanlbel111 8,fOfiIlllllgCOlldltlOD, but on contact withthe air and the walls of the chainlevel oft-he in I claim as new and .Patent is,

a the Walls.-

. comprising 7 receiving portion of the cup. 1

I comprising-a cylinder formed in telesc'opingfl the cylinder, having its end.

her, much Vliith each turn of .the ever the milk-in the connected cups will be. draw-n down to the et 9 and wit'hthe-reverse turn will rush upwardly in the cup upon the ac-.

cess of 'a'irto 'theg-systeni. 1 A valve26 is used to cut ofl the unused sets of cups.

Having thus described my invention what 1. In a'niilking' machine, a suction cup comprising an inflexible cylinder and a flexible lining of less'dianiet'er at theupper end of ortions expanded and secured to tlie' cyinder walls and forming with such walls a closed air spac'eb'etween the central portions of the lining'and 2 In a mi-lkinginachine, a suction. cup

an inflexible-cylinder and a flexible lining of less diameter at-the upper end of the cylinder, having its end'iporti'ons expanl,

inder wallsand tweenthe central portions of the lining and the'walls, together with means for alternately withdrawing and. admitting air to the teat 3. Inamilking mach'ne, a suction oup a spring 22 and is pushed of 'it condenses and it willtli ere-- fore not fill the receiver with foam to "be drawn off througl'i'the )ipe 25 to the pump.

the ends of said 'sectizm, and' cage tween the lower end portion of sai upper .section and the upper portion o-f'the lower sec'tion j- Q- desire to secure by Letters with 'a trap inter cups all sections, a flexible lining having its end ortions expanded and folded over the en s of the upper section, bothsaid lining and the wall of the section being imgierforateand a'rranged to inclose a body 0 tween them. I v I I i.

-l. In a inilking nacliine, the boinbination of a suction cup, a milk receiver, a main connecting the suction cup with" the receiver,

valve mechanism adapted to-place, the main" alternately communication with the receiver and with the open air, together with a closed air chamber encirchng the'upper poi.-

tionof the cup and provided with a flexible inner wall.

5; In a milking machine, the combination of a suct on cup provided with'an annular air ofc'onfined air and having an elastic inner wall secured-under tension to the other walls of the chamber, a main leading from the lower portion-of the cup,

a milk receiver connected chamber at its upper endcontainingabody- In operation the suction pumpsbeing in with the main,- and-nieans for'placing the teat receiving portion of the cup alternately in and with.

communication with the receiver the 0' en air. 6.

n a milking machine, a suction cup trap connection comprising a chainhaving a I ber located above the bottom of the cup, and

portion.

havinga a milking machine, a suction cup trap connection comprising a chain-' asuction tubero inected witl iits upper. end

her located above the bottoniof the cup, and

a suction tube connected" with its upper end portion and extended downwardly therein with an'inlet at an intermediate point. I

In a milking machine, a teat cup formed in seet ns-and'having a telescopic upper secand folded over -tion,'ati1bular fiexibleflining for said upper.

. 9. Ina milkinglmacliine, a set'of suctionii cups all connected witha common settling chamber, a receiver and a inainlea'ding from the settling chamber to the receiver. together cup and the sett ing chamber.

'10. In a milking machine, a'setnof suction chamber, a -milk receiver and amain leading osed between each suction 1 5 connected with a-c0nimon' settliiig from the. settling chamber tothe'receiver, 1

together with means or placing the main alternately in communication with. the receiver and with the i open air;

1'1. In a milking machine, a

for placing'tlie main inalternate'communication'withi-the receiver'and with-theopen air,

togetherwithan intermediatesettlingchani- I her communicating with the cup and with spring adapted to hold the valve normally in said main. receiver closing position. 10

12. In a milking machine, a suction cup, a In testimony whereof I aflix my signature milk receiver, a connecting main, and means in the presence of two \vitnes'ses.

5 for plaoing the main in alternate communica- OTTO A. MOLDEXHAUER.

tion with the receiver and with the 0 en air, Witnesses: said means comprising a three way va ve and FERDINAND BEHL,

an actuating le er therefor, provided with a LEvERETT 0. WHEELER. 

